Besides just having light, light layering (having multiple light sources for different purposes) is the most important, all-encompassing rule in home lighting design.

I recently ran across a post on Image via Freshome.com

That’s not just one, not two, but five different light sources, not counting the ample ambient light coming in from the windows. You have under cabinet lights on the left, recessed accent lights on the back wall, a pendant light, a table lamp, and linear accent lights atop the window.

On the other side of the room, there are just as many layers:

So there you have it. The most universal rule in residential lighting design, and a few ways to make it your own. What’s your favorite light layer in this space?

To most people, circuit panels are the first place they go when power fails to a room.  The loud click heard when a space heater or hair dryer overloads a circuit usually calls for a quick trip to flip a circuit breaker back on.  Every building depends on the circuit panel for safety and electrical management for the home.  The electrical panel for your home, along with the attached circuit breaker, serves to delegate power throughout the home.  By splitting up power demands, it prevents overloads in separate rooms and isolates individual features and appliances.

You may be wondering why we need to split up circuits the way we do.  If all of our devices operate on 120 volts, why do we need separate circuits?  The answer has to do with the physical quirks of wiring.  You see, while everything operates off of the 120 volts delivered by your home’s wiring, the power demands are different for each device.  As power is applied to a circuit, current flows over the wiring and heats it up.  The higher your power demands, the more current is flowing through the wires.

The wires in your home can only handle a set amount of current (most circuits are 20-amp circuits) before they overheat and begin to ignite insulation around them.  If you placed every light, appliance, and TV in your home on the same electrical circuit, you’d reach this thermal limit almost immediately.  To prevent his, we install circuit breakers to help separate energy demands to specific rooms.  We also separate the energy load to create special appliance circuits.  This is why your HVAC unit is on a separate circuit from your kitchen and your laundry room.  Appliance circuits use thicker wires which are designed to handle higher electrical loads.  High current circuits are expensive, so homes are designed to use them sparingly.

This is also why you should only ever replace breakers and fuses with new units that have the same tolerance.  Circuit breakers are designed to be the weakest link in a system.  They must trip before anything on the circuit itself would fail.  This safety feature means that the breaker will trip before wiring overheats or appliances are damaged by high-current draw.  If you do need to replace a breaker, always match it with the same current-rating.

Power surges are another reason we separate circuits in a home.  Whenever a load is applied to the system (you turn on a hair dryer, electrical appliance, or even a lamp) inrush current is also applied.  Inrush-current is the initial surge of power that occurs when current is increased.  Extra power is applied across the system, which causes a risk of electrical damage when a high-power device is applied to a low-power circuits.  To mitigate this, high-load motors such as those in power tools, HVAC systems, and other appliances are plugged into special appliance circuits.  This is also why you should plug sensitive low-voltage electronics into surge protectors.

Sometimes electrical panels can wear out.  While the signs are clear when you know what to look for, without experience you have no way of knowing if it’s time to replace your panel.  Get an inspection for your electrical panel if:

If, however, you happen to notice one of two logos, Federal Pacific Electric (FPE) or Zinsco, you should call for a replacement immediately.  These older models of electrical panels are unsafe and should be replaced quickly.

For the best in quality electrical repair work and installations, contact the professionals at Custom Electric!  Be sure to check back here each week for helpful advice, news, and guides or follow us on Facebook and Twitter!

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A variety of ways exist to quickly and efficiently complete an electrical installation. One method involves using pre-made and pre-fabricated conduits, cables, panels, and devices. Pre-fab strategies cut down on repetitive labor costs and scrap material waste.

Furthermore, pre-fabricated components are assembled in quality-controlled factories by highly trained technicians. This ensures that every device and termination is in working order and properly connected. These technicians work faster and cost less per hour than a journeyman electrician, therefore saving the contractor time and money.

Another option to increase efficiency involves using pre-wired devices. They can be used for repetitive tasks like receptacles, switches, light fixtures, data ports, or fire alarms. They save time by eliminating the need to terminate each device individually. Instead, boxes are made to order and ready to install. The desired length of cable is attached and ready to run to the nearest junction point. Simply attach the box, route the cable, and connect to the supply wires. Most suppliers prepare a custom quote, further reducing time spent by the foreman planning and ordering parts individually.

Pre-wired panels are possibly the simplest way to save money, as they require no special tools. Wiring up a panel at the shop before heading to the job site allows you to function test it before installation. This ensures proper functionality. In addition, it keeps the interior of the panel away from weather and other possible sources of job-site damage. For larger or more complex panels, suppliers can be arranged and have the work performed by specialized technicians. Panels can even be ordered with pre-cut and pre-terminated lengths of cable or cord.

Most electricians have used pre-formed conduit, especially PVC which requires specialized tools to bend. However, entire runs of pipe can be custom ordered and pre-shaped. Especially useful in underground conduit networks or when complicated bends are required, these pre-made conduits drop in place and fit perfectly to the engineer’s prints. They also ensure that conduits are not damaged or kinked during the bending process and that no sharp edges or rough spots are left to damage wires or cables.

If the project demands it, entire buildings can be pre-made and pre-wired in a factory setting by trained technicians who specialize in quickly and efficiently preparing custom ordered buildings. Especially useful in industrial settings, these buildings come complete with all interior and exterior lights, switches, receptacles, and control wiring.

Often, motor control centers (MCCs) for large industrial installations are constructed this way. Therefore, on-site electricians are free to begin immediately running cables to motors and devices, with simple termination points inside a completed building. In addition to using fewer electrician hours, they also reduce required hours from other tradespeople such as welders or cladding installers.

Finally, pre-fab strategies are a great solution for reducing material waste, worker hours, and downtime while making deadlines a snap. Projects run smoother with fewer errors.